<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="target-densitydpi=320,width=640,user-scalable=no">
  <title>画板</title>
  <link rel="stylesheet" href="style.css">
</head>
<body>
  <div id="container">
    <canvas id="canvas" width="640" height="500">
    </canvas>
  </div>
  <script src="./index.js"></script>
</body>
</html>